Exercise 1.(20 points) Suppose for a sample of 30 households selected, the number of living in each was reported as follows. 4 2 5 4 3 2 8 5 5 3 10 2 6 4 6 8 2 2 1 4 2 8 4 6 2 7 3 4 2 1 Compute the mean, median, mode, range, lower and upper quartiles for these data. Exercise 2. (20 points) For each of the following, find the limits, if it exists a) lim(x2 + 3x - 4) x-3' b) lim 4x2+9 x-+00 x3-6x+8 Exercise 3. (20 points) Compute the following 2 1-53 0 - 21 12 .To Exercise 4. (20 points) Calculate the inverse of the given matrix 5 - 2 3 NLO 1 Exercise 5. Find the relative extrema. f(x) = 5x3 - 3x4